Convert HTML to PDF in Java using REST API

Convert_HTML_Document_to_PDF_Advanced_Options_in_Java.java

package com.groupdocsdev.classes;

import com.groupdocs.cloud.conversion.api.*;
import com.groupdocs.cloud.conversion.model.*;
import com.groupdocs.cloud.conversion.model.requests.*;
import com.groupdocs.cloud.conversion.client.Configuration;
import com.groupdocs.cloud.conversion.client.ApiException;
import java.util.List;

// Java convert HTML to PDF using additional options.
public class App {

	public static void main(String[] args) {
		
		// Create an instance of the convert API
		ConvertApi apiInstance = new ConvertApi(configuration);
					
		try {
			 
			// Prepare convert settings
			ConvertSettings settings = new ConvertSettings();
			settings.setStorageName(MyStorage);
			settings.setFilePath("java-testing/input-sample-file.html");
			settings.setFormat("pdf");
			
			PdfConvertOptions convertOptions = new PdfConvertOptions();
			convertOptions.setFromPage(1);
			convertOptions.setPagesCount(1);
			convertOptions.setZoom(50);
			convertOptions.setDpi(124.0);
			convertOptions.setCenterWindow(true);
			convertOptions.setCompressImages(false);
			convertOptions.setDisplayDocTitle(true);
			convertOptions.setFitWindow(false);
			convertOptions.setGrayscale(false);
			convertOptions.setImageQuality(100);
			convertOptions.setLinearize(false);
			convertOptions.setMarginTop(5);
			convertOptions.setMarginLeft(5);
			convertOptions.setPassword("password");
			convertOptions.setUnembedFonts(true);
			convertOptions.setRemoveUnusedStreams(true);
			convertOptions.setRemoveUnusedObjects(true);
			convertOptions.setRemovePdfaCompliance(false);
			convertOptions.setHeight(1024);
			 
			settings.setConvertOptions(convertOptions);
			settings.setOutputPath("java-testing/output-sample-file.pdf");
			
			// convert to specified format
			List<StoredConvertedResult> response = apiInstance.convertDocument(new ConvertDocumentRequest(settings));
			System.out.println("Document conveted successfully: " + response);
			
		} catch (ApiException e) {
			System.err.println("Exception while calling Java API: ");
			e.printStackTrace();
		}
	}
}

Convert_HTML_File_to_PDF_in_Java.java

package com.groupdocsdev.classes;

import com.groupdocs.cloud.conversion.api.*;
import com.groupdocs.cloud.conversion.model.*;
import com.groupdocs.cloud.conversion.model.requests.*;
import com.groupdocs.cloud.conversion.client.Configuration;
import com.groupdocs.cloud.conversion.client.ApiException;
import java.util.List;

// How to convert HTML File to PDF in Java.
public class App {

	public static void main(String[] args) {
		
		// Create an instance of the convert API
		ConvertApi apiInstance = new ConvertApi(configuration);
					
		try {
			 
			// Prepare convert settings
			ConvertSettings settings = new ConvertSettings();
			settings.setStorageName(MyStorage);
			settings.setFilePath("java-testing/input-sample-file.html");
			settings.setFormat("pdf");
			
			settings.setOutputPath("java-testing/output-sample-file.pdf");
		
			// convert to specified format
			List<StoredConvertedResult> response = apiInstance.convertDocument(new ConvertDocumentRequest(settings));
			System.out.println("Document converted successfully: " + response);
			
		} catch (ApiException e) {
			System.err.println("Exception while calling Java API: ");
			e.printStackTrace();
		}
	}
}

Download_HTML_File_into_PDF_in_Java.java

package com.groupdocsdev.classes;

import com.groupdocs.cloud.conversion.api.*;
import com.groupdocs.cloud.conversion.model.requests.*;
import com.groupdocs.cloud.conversion.client.Configuration;
import com.groupdocs.cloud.conversion.client.ApiException;

import java.io.File;

// Download File from the Cloud Storage in Java
public class App {

	public static void main(String[] args) {
				
		// Create an instance of the convert API					
		FileApi apiInstance = new FileApi(configuration);
		try {
			DownloadFileRequest request = new DownloadFileRequest("java-testing\\output-sample-file.pdf", MyStorage, null);
			File response = apiInstance.downloadFile(request);
			System.err.println("Expected response type is File: " + response.length());
		} catch (ApiException e) {
			System.err.println("Exception while calling FileApi:");
			e.printStackTrace();
		}
		
	}
}

Java-Convert-HTML-to-PDF-Online-API.md

You can generate PDF from HTML online programmatically on the cloud. In this article, you will learn how to convert HTML to PDF in Java using REST API.

The following topics shall be covered in this article:

1. Java HTML to PDF Converter REST API – Java SDK Installation
2. Convert HTML Document to PDF File in Java using REST API
3. Convert HTML to PDF Online in Java using Advanced Options

Read the complete article on how to convert HTML to PDF in Java using REST API: https://blog.groupdocs.cloud/2022/11/18/convert-html-to-pdf-in-java-using-rest-api/

Upload_to_Save_HTML_as_PDF_in_JAVA.java

package com.groupdocsdev.classes;

import com.groupdocs.cloud.conversion.api.*;
import com.groupdocs.cloud.conversion.model.*;
import com.groupdocs.cloud.conversion.model.requests.*;
import com.groupdocs.cloud.conversion.client.Configuration;
import com.groupdocs.cloud.conversion.client.ApiException;

import java.io.File;

// Upload File to Cloud Storage using Java
public class App {

	public static void main(String[] args) {
				
		// Create an instance of the convert API					
		FileApi apiInstance = new FileApi(configuration);
		try {
			File fileStream = new File("H:\\groupdocs-cloud-data\\input-sample-file.html");
			UploadFileRequest request = new UploadFileRequest("java-testing\\input-sample-file.html", fileStream, MyStorage);
			FilesUploadResult response = apiInstance.uploadFile(request);
			System.out.println("Expected response type is FilesUploadResult: " + response.getUploaded().size());
		} catch (ApiException e) {
			System.err.println("Exception while calling FileApi:");
			e.printStackTrace();
		}
		
	}
}

Utils_for_HTML_to_PDF_Converter_Online_in_Java.java

# Get your client_id and client_secret from https://dashboard.groupdocs.cloud after free registration.

String ClientId = "xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
String ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String MyStorage = "test-internal-storage";
Configuration configuration = new Configuration(ClientId, ClientSecret);